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Hi,
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US. click here to Talk to a Technician (only for users in the US for now) and get all the help you need. Goodluck!

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Related Questions:

Check your power source (electrical outlet) and the power cable. If electrical outlet is ok, try using a different power cable (the cable that you plug on to the electrical outlet going to your TV set). If everything is ok but still no indicator light, call your technician there might be a problem with the TV power supply.

Power supply board is dead.The board where the power a/c cord plug into it.Replace the power supply board.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

We are having the same problem of the Pioneer Elite Pro-99 turning itself off all of a sudden. The red 'non' power button comes on as if we had turned it off remotely.We would love to resolve this. If you can help let us know.

My set is doing the same thing again. The last time I fixed this (4 years ago) it was a capacitor gone bad in the power supply for the 24v standby circuit. (C166)
The service manuals can be ordered directly from Pioneer Part Number ARP3014 for Pro-100 model.

When it shuts itself down it is for the protection of the unit from further damage. It appears there may be something wrong with the power supply of unit. If you can get an inexpensive replacement board you just might want to go that route. On the other hand you have already gotten ten years out of it and you might want to move on.

You have problem in the power supply section of your set. You can obtain a service manual for 12.99 at the following link and they provide free help in diagnosing your problem. They will also email the manual to them if you click n the contact us link and request they email it.Hope this helps.http://servicemanuals.vstore.ca/

You may need the power supply board resoldered as I had the same problem. The guy listed below can do it for you as I shipped mine from Illinois to him in California... Piece of cake getting the board out of the back and it's not too fraigile... Just pack in bubble wrap and it will be fine. My TV is now working great.